package principle.decorator;

/**
 * @author malguy-wang sir
 * @create ---
 */
public abstract class drink {
    public String des;//描述
    private float price = 0.0f;
    public String getDes() { return des; }
    public void setDes(String des) { this.des = des; }
    public float getPrice() { return price; }
    public void setPrice(float price) { this.price = price; }
    //计算费用的抽象方法，由子类实现
    public abstract float cost();
}
